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### Pg 396

Course: STA 2023, Fall 2011
School: UCF
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Word Count: 199

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Jenkins Crystal STA 2023 TR 10:00am Case Study pg 396 1. Complete the hypothesis test for all adults (men and women) by performing the following steps. Use a level of significance of a = 0.05. (a) Sketch the sampling distribution. (b) Determine the critical values and add them to your sketch. (c) Determine the rejection regions and shade them in your sketch. (d) Find the standardized test statistic. Add it to your...

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Jenkins Crystal STA 2023 TR 10:00am Case Study pg 396 1. Complete the hypothesis test for all adults (men and women) by performing the following steps. Use a level of significance of a = 0.05. (a) Sketch the sampling distribution. (b) Determine the critical values and add them to your sketch. (c) Determine the rejection regions and shade them in your sketch. (d) Find the standardized test statistic. Add it to your sketch. (e) Make a decision to reject or fail to reject the null hypothesis. (f) Interpret the decision in the context of the original claim. 2. If you lower the level of significance to a = 0.01, does your decision Explain change? your reasoning. 3. Test the hypothesis that the mean temperature of men is 98.6F. What can you conclude at a level of significance of a = 0.01? 4. Test the hypothesis that the mean temperature of women is 98.6F. What can you conclude at a level of significance of a = 0.01? 5. Use the sample of 130 temperatures to form a 99% confidence interval for the mean body temperature of adult humans. 6. The conventional "normal" body temperature was established by Carl Wunderlich over 100 years ago. What, in Wunderlich's sampling procedure, do you think might have led him to an incorrect conclusion?
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